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Ubuntu's Unity Has Room To Improve Performance

Phoronix: Ubuntu's Unity Has Room To Improve Performance

Following yesterday's news that Ubuntu 12.10 will drop the Unity 2D desktop, I carried out some quick tests comparing the latest state of the Unity desktop with Compiz against the lightweight Unity 2D desktop that's now being removed. To not much surprise, the composited Unity desktop still has some performance shortcomings for OpenGL workloads compared to Unity 2D.

It would be interesting to know technically why Unity bottlenecks some games and why it doesn't have an effect on others.

I would also be interested in how the benchmarks perform without a WM, so that we know what the baseline is. For all we know, Unity 'helps' the framerate (I know, it doesn't, but it illustrates my point).

It would be interesting to know technically why Unity bottlenecks some games and why it doesn't have an effect on others.

Please be sure you're doing updates on Unity when making this claim - there have been several big updates to it where I've noticed that they listed performance improvements. I had a beef with Unity as well when it dropped my 60+ fps game down to about 40fps unless I was running the game widowed - but they've fixed that since.

The CPU is listed as a quad core, but it's a dual with HT. I thought PTS was supposed to handle that?

In the system information it reports the number of logical cores, within the more detailed CPU table (not shown in article) is where it shows physicsl vs. logical, instruction set extensions, cache sizes, etc.